Finding the Third Proportional to 260,788.50 and 550,064.25

Step by Step Solution

1. Step 1: Write the proportion equation
   260,788.50 : 550,064.25 = 550,064.25 : x
2. Step 2: Convert to fraction form
   260,788.50/550,064.25 = 550,064.25/x
3. Step 3: Cross multiply
   260,788.50x = 550,064.25 × 550,064.25
4. Step 4: Simplify right side
   260,788.50x = 302,570,679,128.06
5. Step 5: Solve for x
   x = 302,570,679,128.06/260,788.50
6. Step 6: Final answer
   x = 1,160,214.81